The investigation of infrared absorption intensities in hydrogen-bonded complexes

The nature of hydrogen bonding within molecular complexes is explored through the use of infrared spectroscopy. Vibrational predissociation of strongly hydrogen bonded dimers has been performed using the molecular beam depletion technique. An investigation of the O-H stretches in (CH$\sb3$OH)$\sb2$ under low resolution (OPO linewidth = 4 cm$\sp{-1}$) yielded uniquely different frequency shifts from the monomer absorption ($-$107 cm$\sp{-1}$ for the proton donor and +3 cm$\sp{-1}$ for the proton acceptor), indicating that the monomer subunits reside in inequivalent environments. The vibrational bands were Lorentzian in shape, thereby permitting determination of the integrated absorption intensities for both transitions. The transition linestrengths for the proton donor and proton acceptor are enhanced upon complexation by a factor of 12 and 1.6, respectively.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Chemistry

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2011

Author dc:creator

• Laush, Curtis Thomas, Jr

Contributors dc:contributor

• Lisy, James M.

• Chemistry, Analytical
• Chemistry, Physical

Statement dc:rights

• Copyright 1994 Laush, Curtis Thomas, Jr

Language dc:language

eng

Identifier

AAI9512449
(UMI)AAI9512449

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/21985